1、 Overview of forced circulation pump for evaporator matching
The FJX evaporator is equipped with a forced circulation pump that is a high flow, low head axial flow pump. Suitable for forced circulation systems of evaporators in industries such as vacuum salt production, alumina, phosphoric acid, ammonium phosphate, and caustic soda. It can also be used as a circulating pump for crystallizers and reactors.
Our company has introduced and absorbed the advantages of similar products at home and abroad, and made significant adjustments to the product structure to ensure the reliability, economy, and safety of pump operation. Welcome customers to call or write to inquire.
Its advantages are mainly manifested in:
1. The speed is low, generally within 980r/min, with 6 levels of speed, which meets the requirements of crystallization process and runs smoothly
2. Excellent hydraulic performance, efficiency greater than 70%, wide high-efficiency zone, and good anti cavitation performance
3. Consider the flow direction of the pump medium to be vertically downward and horizontally outward. The significant impact of water flow force on the pump shaft requires the installation of a pump shaft sleeve protective device inside the pump body. By transferring the diving force of the medium to the pump body, the stable operation of the pump is ensured, greatly reducing the impact of the medium on the mechanical seal force and extending the service life of the machine seal. The improvement of this structure has taken a significant step forward among similar products in China. In addition, the pump body adopts integral casting with good rigidity, and the intermediate support structure is stably connected
4. The bearing box is a square large-span heavy-duty structure with good stability, strong load-bearing capacity, and reliable operation. Compared with similar domestic products, it is easy and accurate to install (the original domestic bearing box was a split type). Radial short cylindrical bearings and heavy-duty paired bearings are used at the front and rear ends respectively. All of its bearings are made of NSK (SKF) or high-quality domestic bearings
5. Advanced shaft sealing, using a combination of secondary impeller power seal and Bergman quick installation double end mechanical seal, with external cooling flushing water to improve the working conditions of the shaft seal and prolong the service life of the mechanical seal. The outer circumference of the shaft sleeve is enlarged, and compared with similar domestic products, the wall thickness is thickened and the deformation is small